1. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
2. School of Biological Sciences, School of Chemistry and Biochemistry, and Neuroscience Program, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
3. Molecular and Systems Pharmacology, Laney Graduate School, Emory University, Atlanta, Georgia 30322, United States
4. Center for the Study of Human Health, Emory University, Atlanta, Georgia 30322, United States
5. Department of Dermatology, Emory University School of Medicine, Atlanta, Georgia 30322, United States